Muzzle brake

ultimate_monkey said:
this part really depends on the brake design, i agree that the more effective the brake, the louder it is, BUT depending on the port shape and design, some brakes can be perceived as less noisy to the shooter then others. Being beside the rifle is never fun...

also barrel length, powder used and charge weight, effect the dB levels .



not trying to nit pick at technical details, just add some more information into the subect of loud vs quiet brakes
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All good stuff. Here's an example: My 7mm Rem Mag is much louder than my 458 Win Mag. Both rifles have similar brakes. The muzzle pressure on the 7mag is probably a lot higher than the 458. I have found that the more overbore the cartridge, the louder the brake seems. I put a brake on a friend's 8mm Rem Mag. The darn thing is so loud it makes my teeth hurt. Also, the more overbore the cartridge, the greater percentage of reduction in felt recoil. For example, the brake on the 8mm Rem Mag probably reduces felt recoil by 75% (wishful thinking?) whereas the brake on the 458 reduces felt recoil by only about 40%. Have you found similar results?
 
cr5 said:
That new brake looks great. Should be very effective.
You might want to try a set of medium height rings (high if that is a 56mm obj) instead of the one piece mount and get that scope down closer to the barrel, you might be able to get rid of the slip on cheek rest. Is that a 20 or 30moa rail? Which reticle is in your NF? I have a x56 with RP-R2 and high speed turrets with zero-stop on my 338L, love it.
I used to have a 700P in 338 Lapua and the first time I shot it prone I learned the hard way that the stock brake had a serious deficiency. Sold the rifle before I had a chance to change the brake. Glad to see Remington realized they needed to change it as the new ones have a better design.
My DTA SRS that replaced the Remington has a much better brake and doesn't kick dirt in your face.
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The rings are on my list to change out for a lower set, but I am very happy with the one piece SPUHR scope mount that is on there, just need a lower one. I actually like the cheek rest as well, I find in very cold temperatures it is far more comfortable to shoot against the padded cheek rest than the cold polymer stock. Personal preference based on my past experience here.

The SPUHR mount has 20MOA built in, which has gotten me to 1050 meters with lots of MOA left. I need to change the rail out eventually too, I have an aluminum rail on right now, but I want to go steel.

Reticule is the MOAR reticule, I love it, out of all there reticules, I would buy that one over and over again, it work so well for my kind of shooting and estimation.
 
ricksplace said:
All good stuff. Here's an example: My 7mm Rem Mag is much louder than my 458 Win Mag. Both rifles have similar brakes. The muzzle pressure on the 7mag is probably a lot higher than the 458. I have found that the more overbore the cartridge, the louder the brake seems. I put a brake on a friend's 8mm Rem Mag. The darn thing is so loud it makes my teeth hurt. Also, the more overbore the cartridge, the greater percentage of reduction in felt recoil. For example, the brake on the 8mm Rem Mag probably reduces felt recoil by 75% (wishful thinking?) whereas the brake on the 458 reduces felt recoil by only about 40%. Have you found similar results?
Click to expand...


you are correct about the pressure. im not sure your exact load data, but a 7mmRM is some where in the 45-50 000 CUP range while the 458 34-39000CUP.. so quite the difference. same goes for the over bores, start putting alot of pressure into the barrel, its gonna be louder when the comes out those ports.

same concept is applying to your friends 8MM-RM, those pressures are 46-52000CUP more pressure = more noise, more noise = greater reduction in recoil


that being said even a 308 with a short barrel and effective brake can be unpleasant to be beside, as the pressures can be up around 48000CUP. a lot more of the noise has to do with pressure then amount of powder being used
 
APA Little Bastard on my 308 with 20" barrel. Helped but I rebarreled it shortly after and can not use the brake on the new barrel due to rules.

Bought it from Prophet River and delivered next day.
 
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